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25 April 2024

» pubmed » pmid11955229

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Neutron polarizabilities investigated by quasifree Compton scattering from the deuteron
K Kossert ; M Camen ; F Wissmann ; J Ahrens ; J R M Ann ; H-J Arends ; R Beck ; G Caselotti ; P Grabmayr ; O Jahn ; P Jennewein ; M I Levchuk ; A I L’vov ; J C McGeorge ; A Natter ; V Olmos de León ; V A Petrun’kin ; G Rosner ; M Schumacher ; B Seitz ; F Smend ; A Thomas ; W Weihofen ; F Zapadtka ;
Date:	22 Apr 2002
Journal:	Phys Rev Lett, 88 (16), 162301
Abstract:	Measuring Compton scattered photons and recoil neutrons in coincidence, quasifree Compton scattering by the neutron has been investigated at MAMI (Mainz) at theta(lab)(gamma) = 136 degrees in an energy range from 200 to 400 MeV. From the data a polarizability difference of alpha(n)-beta(n) = 9.8+/-3.6(stat)+2.1-1.1(syst)+/-2.2(model) in units of 10(-4) fm(3) has been determined. In combination with the polarizability sum alpha(n)+beta(n) = 15.2+/-0.5 deduced from photoabsorption data, the first precise results for the neutron electric and magnetic polarizabilities, alpha(n) = 12.5+/-1.8(stat)+1.1-0.6(syst)+/-1.1(model) and beta(n) = 2.7-/+1.8(stat)+0.6-1.1(syst)-/+1.1(model), are obtained.
Source:	PubMed, pmid11955229
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